What is a ticker timer and what does it do?
It is a device to record an object’s movement by taking a spot on a paper tape at regular time intervals. A typical ticker timer is plugged into a household outlet. So the ticker cycle of the ticker timer is closely related to the frequency of the supplied household power.
How does a ticker timer work?
The ticker timer makes dots on a paper tape every fiftieth of a second. So if a piece of tape is pulled through the timer for a second there will be 50 dots on it. Since the spaces between the dots take such a short time (1/50 s) the ticker timer is a very useful instrument for measuring short intervals of time.
Why do ticker timers use AC?
A ticker timer is essentially a small motor. AC power requires simpler motors that do not require brushes or commutators like DC driven machinery.
How is the ticker timer used to measure time?
Topic: Ticker Timer. The ticker timer makes dots on a paper tape every fiftieth of a second. So if a piece of tape is pulled through the timer for a second there will be 50 dots on it. Since the spaces between the dots take such a short time (1/50 s) the ticker timer is a very useful instrument for measuring short intervals of time.
How many dots per second does a ticker tape timer make?
A ticker-tape timer consists of an electrical vibrator which vibrates 50 times per second. This enables it to make 50 dots per second on a ticker-tape being pulled through it. The time interval between two adjacent dots on the ticker-tape is called one tick. One tick is equal to 1/50 s or 0.02 s.
How is the ticker cycle related to frequency?
So the ticker cycle of the ticker timer is closely related to the frequency of the supplied household power. If 60Hz power is supplied, the ticker timer will also take 60 points per second. Therefore, the period per spot can be calculated as follows.
How does the ticker WORK in EaselJS animation?
Ticker makes time based animations easy, by passing your listener a parameter that indicates the amount of time that has elapsed since the previous tick. It also exposes a getTime method which provides you with the total time elapsed since Ticker initialized.